Slice/StoreServer/MonitoringCashierPage.xaml

<Page x:Class="StoreServer.MonitoringCashierPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      xmlns:local="clr-namespace:StoreServer"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="Состояние касс">

    <Grid>
        <DataGrid x:Name="ListCashier">
            <DataGrid.Columns>
                <DataGridTextColumn Header="Номер кассы" Binding="{Binding CashierID}"></DataGridTextColumn>
                <DataGridTextColumn Header="Статус" Binding="{Binding IsStart}"></DataGridTextColumn>
            </DataGrid.Columns>
        </DataGrid>
    </Grid>
</Page>